Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Dabhade, Pratik A."'
Autor:
Dabhade, Pratik, Chavan, Kshitij, Saikia, D. J., Oei, Martijn S. S. L., Rottgering, Huub J. A.
To test the hypothesis that megaparsec-scale giant radio galaxies (GRGs) have multiple epochs of recurrent activity which lead to their giant sizes and to understand the nature of double-double radio galaxies (DDRGs), we have built the largest sample
Externí odkaz:
http://arxiv.org/abs/2408.13607
Autor:
Sankhyayan, Shishir, Dabhade, Pratik
Publikováno v:
A&A 687, L8 (2024)
We investigated the prevalence of giant radio galaxies (GRGs), some of the largest structures powered by supermassive black holes, within supercluster environments, and the influence of such environments on their properties. Utilising two large catal
Externí odkaz:
http://arxiv.org/abs/2405.19154
Autor:
Bagchi, Joydeep, Ray, Shankar, Dhiwar, Suraj, Dabhade, Pratik, Barth, Aaron, Ho, Luis C., Mirakhor, Mohammad S., Walker, Stephen A., Nesvadba, Nicole, Combes, Francoise, Fabian, Andrew, Jacob, Joe
This study delves into the bulge-disc components and stellar mass distribution in the fast-rotating, highly massive spiral galaxy 2MASX~J23453268-0449256, distinguished by extraordinary radio jets extending to Mpc scales. Using high-resolution multi-
Externí odkaz:
http://arxiv.org/abs/2405.01910
Autor:
Oei, Martijn S. S. L., van Weeren, Reinout J., Hardcastle, Martin J., Gast, Aivin R. D. J. G. I. B., Leclercq, Florent, Röttgering, Huub J. A., Dabhade, Pratik, Shimwell, Tim W., Botteon, Andrea
Giant radio galaxies (GRGs, giant RGs, or giants) are megaparsec-scale, jet-driven outflows from accretion disks of supermassive black holes, and represent the most extreme pathway by which galaxies can impact the Cosmic Web around them. A long-stand
Externí odkaz:
http://arxiv.org/abs/2404.17776
Autor:
Sankhyayan, Shishir, Bagchi, Joydeep, Tempel, Elmo, More, Surhud, Einasto, Maret, Dabhade, Pratik, Raychaudhury, Somak, Athreya, Ramana, Heinämäki, Pekka
Superclusters are the largest massive structures in the cosmic web on tens to hundreds of megaparsecs (Mpc) scales. They are the largest assembly of galaxy clusters in the Universe. Apart from a few detailed studies of such structures, their evolutio
Externí odkaz:
http://arxiv.org/abs/2309.06251
Autor:
Nandi, Payel, Stalin, C. S., Saikia, D. J., Riffel, Rogemar A., Manna, Arijit, Pal, Sabyasachi, Dors, O. L., Wylezalek, Dominika, Paliya, Vaidehi S., Saikia, P., Dabhade, Pratik, Patig, Markus-Kissler, Sagar, Ram
Black hole driven outflows in galaxies hosting active galactic nuclei (AGN) may interact with their interstellar medium (ISM) affecting star formation. Such feedback processes, reminiscent of those seen in massive galaxies, have been reported recentl
Externí odkaz:
http://arxiv.org/abs/2307.13263
The excellent sensitivity and optimum resolution of LoTSS DR2 at 144 MHz has enabled us to discover a giant radio galaxy (J1225+4011) with three distinct episodes of jet activity, making it a member of a class of objects called triple-double radio ga
Externí odkaz:
http://arxiv.org/abs/2307.08553
Autor:
Dabhade, Pratik, Gopal-Krishna
Publikováno v:
A&A 675, L3 (2023)
We use the recent releases of sensitive VLA/LOFAR large-area surveys at 340 MHz and 54 MHz, in conjunction with the 1.4 GHz NVSS, to accurately determine the `spectral index - flux density relation' ($\alpha$ - S) for extragalactic radio sources sele
Externí odkaz:
http://arxiv.org/abs/2306.11205
Minkowski's Object and 'Death Star galaxy' are two of the famous cases of rare instances when a radio jet has been observed to directly hit a neighbouring galaxy. RAD12, the RAD@home citizen science discovery with GMRT being presented here, is not on
Externí odkaz:
http://arxiv.org/abs/2303.06416
Autor:
Oei, Martijn S. S. L., van Weeren, Reinout J., Gast, Aivin R. D. J. G. I. B., Botteon, Andrea, Hardcastle, Martin J., Dabhade, Pratik, Shimwell, Tim W., Röttgering, Huub J. A., Drabent, Alexander
Publikováno v:
A&A 672, A163 (2023)
Radio galaxies are luminous structures created by the jets of supermassive black holes, and consist of atomic nuclei, relativistic electrons, and magnetic fields. In exceptional cases, radio galaxies attain cosmological, megaparsec extents - and thus
Externí odkaz:
http://arxiv.org/abs/2210.10234